The book you want is not ___now. I will letyou know as soon as it is returned to the library.

There are many ways in which you can improve your studyBut __________, you should work hard

I’m lucky _______ the thing I enjoy doingmore is ________ I’ve ended up doing

Grace doesn’t want to move to New York because she thinks if she________there，she wouldn’t be able to see her parents very often. (2012·安徽，31)

Persons under18 not be employed in night work in the United States.